This information is about Vernier Video Analysis.
Video files with the extensions of .mov and .mp4 are likely to be compatible with Vernier Video Analysis. The file extension only describes the file format, and does not describe the method used to compress the video. As a result there are some .mov or .mp4 files that cannot be opened due to an incompatible compression method, or codec. In particular, files saved in high efficiency format on an iOS device cannot be opened in Vernier Video Analysis, despite carrying the .mov extension. See Why does a video captured on an iOS device give a codec error or render as a gray or black box in Logger Pro, Graphical Analysis Pro, or Vernier Video Analysis? for more information.
Unsupported file extensions include .avi and .mkv formats.